diploic veins venae

例句：

1. 1.The doctor examined the patient's blood vessels to determine if there were any blockages.
   医生检查了患者的血管以确定是否有任何阻塞。
2. 2.The scientist discovered new veins in the ocean floor that could be used for oil exploration.
   科学家在海底发现了新的血管，可以用来进行石油勘探。
3. 3. The researcher found that veins in the skin can be used to deliver drugs directly into the body.
   研究者发现皮肤中的血管可以用于直接将药物输送到身体内。